> For the complete documentation index, see [llms.txt](https://psu-sis-team.gitbook.io/sis/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://psu-sis-team.gitbook.io/sis/manual/en/help/troubleshooting.md). # Troubleshooting ## Signing in ### I cannot sign in, or the page keeps loading 1. Open . The site clears its cookies and takes you back to the front page. 2. Tap **Sign in with PSU Passport** again. ### The screen says I have no right to use the system Email . This message shows when your account has no student role, or is not listed at any campus. ### The screen says I graduated more than 90 days ago Contact the Registrar's Office. You can use the system only until 90 days after you graduate. ### SIS signed me out on its own Sign in again. You come back to the same page. The system signs you out after 30 minutes without activity, and always 8 hours after you sign in. ### The screen says the connection was lost Wait a moment, then tap **Try again**. If that does not help, reload the page. ### The site went back to Thai after I signed in Change the language again. Each time you sign in, the website uses the language in your student record. See [Language](/sis/manual/en/settings/language.md). ## Money ### My wallet balance on SIS is wrong after a top-up 1. Go to the semester page. 2. Tap **Update balance**. 3. If the balance has not changed, wait a moment and tap it again. See [Top up your UniPayX wallet](/sis/manual/en/payment/payment/top-up.md). ### My payment failed because my wallet balance is not enough Top up, then pay again. No money was taken, and the attempt does not appear in your payment history. See [Pay the semester fee](/sis/manual/en/payment/payment/pay-semester-fee.md). ### The page says it is checking my payment Do not pay again. The system never charges twice. Wait a moment and tap **Check status again**, or look for the pending item in [Payment history](/sis/manual/en/payment/payment/history.md). ### The enrollment page is locked Pay the semester fee in full first, then come back and tap **Enter enrollment**. See [Before you enroll](/sis/manual/en/enrollment/enrollment/before-you-enroll.md). ### I can enter enrollment but cannot confirm If your scholarship covers the whole fee, tap **Confirm use of entitlement for the fee** on the semester page first. See [Before you enroll](/sis/manual/en/enrollment/enrollment/before-you-enroll.md). ### Confirming enrollment says I am short of money Top up the missing amount, then go back to the SIS tab and tap **Check my balance again**. Then confirm again. Your subjects stay in your cart, so you do not need to choose them again. See [Not enough money in your wallet](/sis/manual/en/enrollment/enrollment/not-enough-money.md). ### Who to contact For problems with the website, email . For fees and enrollment rules, contact the Registrar's Office. See [Contact the Registrar](/sis/manual/en/services/contacts.md).